253534391 has 4 divisors (see below), whose sum is σ = 276582984. Its totient is φ = 230485800.

The previous prime is 253534363. The next prime is 253534417. The reversal of 253534391 is 193435352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253534391 - 2¹⁸ = 253272247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253534331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11524280 + ... + 11524301.

It is an arithmetic number, because the mean of its divisors is an integer number (69145746).

Almost surely, 2^253534391 is an apocalyptic number.

253534391 is a deficient number, since it is larger than the sum of its proper divisors (23048593).

253534391 is a wasteful number, since it uses less digits than its factorization.

253534391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23048592.

The product of its digits is 48600, while the sum is 35.

The square root of 253534391 is about 15922.7632966141. The cubic root of 253534391 is about 632.9153461428.

The spelling of 253534391 in words is "two hundred fifty-three million, five hundred thirty-four thousand, three hundred ninety-one".